Nikketryhard
3d87c04d20
docs: overhaul docs, add architecture and traces, update README/GEMINI
- Add docs/architecture.md with 4 mermaid diagrams
- Add docs/mitm.md with 3 mermaid diagrams (replaces mitm-interception-status)
- Add docs/traces.md documenting per-call trace system
- Rewrite README.md to be concise with mermaid and doc refs
- Rewrite GEMINI.md for core philosophy and agent usage
- Clean extension-server-analysis.md (remove stale debug sections)
- Delete temp docs: standalone-ls-todo, panel-stream-investigation,
endpoint-gap-analysis, request-comparison